MyfatBOSS Aquarium Filter Cartridges, Size C, 10-Pack with Activated Carbon

MyfatBOSS Size C aquarium filter cartridges are a 10-pack designed to help filter aquarium water, with thickened filter spray cotton and activated carbon.

• Fits listed 20–40- and 30–60-gallon power filters, plus EZ-Change #3 and Rite-Size C — match the cartridge size to your filter.
• Compatible with Penguin PRO Power Filters 200, 275, 350 and 375 — supports use with the named filter models.
• Each cartridge measures 5.3 x 5.7 x 6 inches (13.5 x 14.5 x 15.2 cm) — compare these dimensions with the space in your filter.
• Thickened filter spray cotton and activated carbon — target particles and dust in aquarium water.
• Replace every 2–4 weeks for best results — gives you a clear replacement interval to follow.

Keeping aquarium water filtered means managing suspended particles, odors and discoloration as part of routine tank care. These cartridges are made for compatible power filters used with fish tanks, including the capacities and models named below. A 10-piece set provides replacement cartridges for ongoing filter maintenance.

Which aquarium filters do these cartridges fit?

MyfatBOSS Size C cartridges are compatible with the listed 20–40- and 30–60-gallon power filters, including EZ-Change #3 and Rite-Size C filter cartridges. They are also identified for 50-gallon tanks and Penguin PRO Power Filters 200, 275, 350 and 375. The product details also name 55-gallon and 60-gallon aquarium filters. Compare your filter’s cartridge size and model with these details before choosing.

• Cartridge dimensions: 5.3 x 5.7 x 6 inches (13.5 x 14.5 x 15.2 cm).
• Named cartridge types: EZ-Change #3 and Rite-Size C.

What does the filter media do?

The cotton filter layer and activated carbon are designed to capture and adsorb material as water passes through the cartridge. The carbon is intended to help remove odors, water discoloration, impurities and toxins, while the filter media targets dust particles and helps keep them from recirculating.

• Made with thickened filter spray cotton.
• Contains activated carbon for adsorption.

How do I replace the cartridges?

MyfatBOSS cartridges are designed to change without messy assembly, with replacement taking seconds. Shake and rinse the cartridge, then change it every 2–4 weeks for best results. The recommended interval provides a routine for maintaining your aquarium filter.

• Replacement interval: every 2–4 weeks for best results.
• No messy assembly is required.

These cartridges suit aquarium owners with a compatible Size C filter who want replacement media for routine water filtration. They are intended for the named power filters and cartridge types, rather than filters that use a different cartridge size. Their cotton-and-carbon construction and listed model compatibility define the fit.